package com.julang.check.config;

import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import com.julang.check.interceptor.AliPayInterceptor;
import com.julang.check.interceptor.AuthenticationInterceptor;
import com.julang.check.interceptor.WxPayInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import javax.annotation.Resource;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;

/**
 *
 //@Configuration
 * @author 赵自强
 */
public class WebMvcConfigurer extends WebMvcConfigurationSupport {


	@Override
	public void addResourceHandlers(ResourceHandlerRegistry registry) {
		// 将所有/static/** 访问都映射到classpath:/static/ 目录下
		registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
		super.addResourceHandlers(registry);
	}

	/**下面的代码将会把spring生成json的方式配置为阿里巴巴的FastJson*/
	@Override
	public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
		super.configureMessageConverters(converters);
		FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter();
		FastJsonConfig config = new FastJsonConfig();
		config.setSerializerFeatures(
// 保留map空的字段
				SerializerFeature.WriteMapNullValue,
// 将String类型的null转成""
				SerializerFeature.WriteNullStringAsEmpty,
// 将Number类型的null转成0
				SerializerFeature.WriteNullNumberAsZero,
// 将List类型的null转成[]
				SerializerFeature.WriteNullListAsEmpty,
// 将Boolean类型的null转成false
				SerializerFeature.WriteNullBooleanAsFalse,
// 避免循环引用
				SerializerFeature.DisableCircularReferenceDetect);

		converter.setFastJsonConfig(config);
		converter.setDefaultCharset(Charset.forName("UTF-8"));
		List<MediaType> mediaTypeList = new ArrayList<MediaType>();
		// 解决中文乱码问题，相当于在Controller上的@RequestMapping中加了个属性produces = "application/json"
		mediaTypeList.add(MediaType.APPLICATION_JSON);
		converter.setSupportedMediaTypes(mediaTypeList);
		converters.add(converter);

		converters.add(responseBodyConverter());
	}

	/**@bean*/
	public HttpMessageConverter<String> responseBodyConverter() {
		StringHttpMessageConverter converter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
		return converter;
	}
}

